Database schema version (3.8.2-2017-10-14) does not match CMS version (3.8.4-2018-01-16).
Table 'a1e9k_user_keys' should not have index 'series_2'. (From file 3.8.4-2018-01-16.sql.)
Table 'a1e9k_user_keys' should not have index 'series_3'. (From file 3.8.4-2018-01-16.sql.)